<template>
  <div class="app-container calendar-list-container">

    <!-- 查询和其他操作 -->
    <div class="filter-container">
      <el-input clearable
                class="filter-item"
                style="width: 200px;"
                placeholder="请输入用户ID"
                v-model="listQuery.userId">
      </el-input>
      <el-input clearable
                class="filter-item"
                style="width: 200px;"
                placeholder="请输入商品ID"
                v-model="listQuery.goodsId">
      </el-input>
      <el-button class="filter-item"
                 type="primary"
                 icon="el-icon-search"
                 @click="handleFilter">查找</el-button>
      <el-button class="filter-item"
                 type="primary"
                 :loading="downloadLoading"
                 icon="el-icon-download"
                 @click="handleDownload">导出</el-button>
    </div>

    <!-- 查询结果 -->
    <el-table size="small"
              :data="list"
              v-loading="listLoading"
              element-loading-text="正在查询中。。。"
              border
              fit
              highlight-current-row>
      <el-table-column align="center"
                       width="100px"
                       label="足迹ID"
                       prop="id"
                       sortable>
      </el-table-column>

      <el-table-column align="center"
                       min-width="100px"
                       label="用户ID"
                       prop="userId">
      </el-table-column>

      <el-table-column align="center"
                       min-width="100px"
                       label="商品ID"
                       prop="goodsId">
      </el-table-column>

      <el-table-column align="center"
                       min-width="100px"
                       label="添加时间"
                       prop="addTime">
      </el-table-column>

    </el-table>

    <!-- 分页 -->
    <div class="pagination-container">
      <el-pagination background
                     @size-change="handleSizeChange"
                     @current-change="handleCurrentChange"
                     :current-page="listQuery.page"
                     :page-sizes="[10,20,30,50]"
                     :page-size="listQuery.limit"
                     layout="total, sizes, prev, pager, next, jumper"
                     :total="total">
      </el-pagination>
    </div>

  </div>
</template>

<script>
import { listFootprint } from '@/api/user/user.js'

export default {
  name: 'FootPrint',
  data () {
    return {
      list: null,
      total: null,
      listLoading: true,
      listQuery: {
        page: 1,
        limit: 20,
        userId: undefined,
        goodsId: undefined,
        sort: 'add_time',
        order: 'desc'
      },
      downloadLoading: false
    }
  },
  created () {
    this.getList()
  },
  methods: {
    getList () {
      this.listLoading = true
      listFootprint(this.listQuery).then(response => {
        this.list = response.data.data.items
        this.total = response.data.data.total
        this.listLoading = false
      }).catch(() => {
        this.list = []
        this.total = 0
        this.listLoading = false
      })
    },
    handleFilter () {
      this.listQuery.page = 1
      this.getList()
    },
    handleSizeChange (val) {
      this.listQuery.limit = val
      this.getList()
    },
    handleCurrentChange (val) {
      this.listQuery.page = val
      this.getList()
    },
    handleDownload () {
      this.downloadLoading = true
      import('@/vendor/Export2Excel').then(excel => {
        const tHeader = ['用户ID', '商品ID', '添加时间']
        const filterVal = ['userId', 'goodsId', 'addTime']
        excel.export_json_to_excel2(tHeader, this.list, filterVal, '用户收藏信息')
        this.downloadLoading = false
      })
    }
  }
}
</script>
